Protozoa Goldfuss, 1818 - protozoans Phylum Sarcomastigophora Honigberg & Balamuth, 1963 Subphylum Mastigophora Diesing, 1866 - flagellates Class Zoomastigophorea - "animal-like" flagellates see Phylum Zoomastigina Order Hypermastigida Grassi, 1911 - hypermastigids see Class Hypermastigia